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Use these detectors for indoor confined areas where a fire increases air temperature slowly and where there is a substantial increase in air temperature before the fire breaks confinement. Furnace rooms, closets, bathrooms, and other confined areas are appropriate applications for fixed temperature detectors. Note: These heat detectors are intended for detection circuits that protect property. Use smoke detectors to protect personnel. Use the D603 or D604 (response rated at 135°F [57°C]) in areas where the ambient temperatures do not exceed 100°F (38°C). Use the D605 (response rated at 190°F [88°C]) in areas where the ambient temperatures exceed 100°F (38°C) but are less than 150°F (66°C). The D603 incorporates a rate­of­rise feature that signals an alarm when it senses a temperature increase greater than 15°F (8.3°C) per min. When properly installed using the D200 Series bases, tamper protection is provided by in­out wiring of the positive power line. This causes the control panel to initiate a trouble signal when a detector is removed from its base. Supervision of two­wire systems is provided by the master control. Four­wire system supervision is provided by an end­of­ine (EOL) power supervision device such as a D275, or a D293E with an EOL resistor as specified by the control panel manufacturer.